Improved shaft-coupling



To .'dlwhom/t may concern Be it known that I, SETH WHEELER, of Albany,

'lni'trd i` gums SETHWH'EELn-R, OF'ALBANY,

NEW YORK.

Letters Patent No. 97,575, dated .December 7, 1869.

IMPROVE!) SHAFT-COUPLING.

The Schedule referred to in these Letters Patent and making part of thesama in the county of Albany, andiState of' New York, have invented anew and improved Articulating Shaft-(loupling; and I do hereby declarethat the following is a full 'and exact description thereof, referencebeing had as to easy transmission of power, as the device known as Hooksuniversal joint. llheir use, however, is attended withmuch danger,particularly when used for driving threshing-machinery, where they arearranged along the ground, owing to the certainty-oftheir pr'ojectingpants entangling the clothes lof the workmen, if they chance to passnear enough to them. Indeed, so dangerous are they considered, and so'equentthe accidents occurring through their use, that the Legislaturesof) some of the larger grain-producing States have enacted laws,compelling parties using them about threshing-machinery to enclose themin suitable boxing. But, owing to the diiiiculty and time required tosecure the boxing properly at every setting of the machine, they arelooked upon by the threshing-community with' much disfavor.

In my improved coupling, the principle of the Hook joint is retained,but all danger of accident obviated,

prefer, in most instances, to cast the enclosing case as a -part of the,coupling, it may, if desirable, be cast separately, or formed ofwrought-metal, Where lightness is desired, in which case the jointwould'be of a spherical form, and the case secured to the parts by boltsor rivets, or it may be left loose about the joint, f a-s its form wouldprevent slipping out of place.

To enable 'others skilled in the art to understand my invention, I willdescribe its construction and operation.

Figure 1 is a side view of my improved coupling. Figure 2 is a sectionalview, taken diametrica'lly through the coupling.`

Figures 3, 4, and 7, are Isectional views of the different paits ofthecoupling separated.

Figures 5 ando are, respectively, end and side views of the'centralportions of the coupling.

Figures 8 and 9 are side views ofthe bearings or driving-pins of thecoupling. v

The coupling which I have represented in the accompanying drawingsconsists of two forks, A and'B, connected and heldin their respectiveypositionsby the centre-piece or cross C, and driving-pins D E.

Between, and connecting the bearings of A, I cast a spherical case, a,of suicient internall diameter to receive the fork B, and of suitablethickness towith- 'stand blows it will be likelyA to receive in use.

There is also a case, b, extending between the bearings of B, but not tothe extent of or., as space must be Ithe reception of the pins D E.

- One of the pi-ns lD is somewhat larger than the other, which passesthrough it 'and its extremities, riveted upon A, thus securing all theparts together;

Both the parts A and B are cast with tubular sleeves, which receive theends of the shaftingto be coupled.

Having described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

The case a b, extending between the bearing-points of A and B,substantially as described.

. SETE WHEELER.

Witnesses:

AUGUSTUS H. WALSH, E. T. MARTIN.

